Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!

Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.

1) What is the manufacturers warranty/responsibility on the emissions control devices

2) my car is throwing code c0420 , I'm pretty sure it is that code, and only that code which when looking it up on Snap-On's scan tool database says that if only this code is received that I should check for exhaust leaks, my car has none, and if none is found check the catalytic converters to see if they are damaged and if so replace the cats.

What constitutes a damaged catalytic converter and how can I visually inspect mine and determine if it/they are damaged?

3) If my cats are in fact damaged can anyone recommend a good inexpensive replacement for it/them

I have a silver 2000 2.5RS and got the same code up today too at the dealership. The car is at 113k, so I'm sure I'm beyond any manufacture recourse.

My big dilema is going OEM or doing a performance replacement. I have a Stromung catback system now, and someone replied to my initial post about getting a Stromung cat converter for $349. Best price I can get for the OEM is $457. If the Stromung is similiar in durability, I'd love to save the $100 and get some more performance.

Your owners manual will state the warranty for emissions parts (which goes to 80K miles IIRC).
You can get then replaced (within the warranty period) if they break internally or clog.
I doubt you fall into either one of these.

Do you have any engine/exhaust mods? A different header usually pops the P0420 CEL.

If you or someone you know has welding experience you can save quite a bit on a diy project. www.jegs.comwww.summitracing.comwww.jcwhitney.com
they all sell catalytic converters. Jegs and summit sell exhaust bends. A cat can range anywhere from 54$ to 150$. It's the welding part that most people can't accomplish.